package rtg.world.gen;
import java.util.Random;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.biome.Biome;
import net.minecraft.world.chunk.ChunkPrimer;
import net.minecraft.world.gen.MapGenCaves;
import com.google.common.base.Objects;
import rtg.api.RTGAPI;
import rtg.api.config.RTGConfig;
import rtg.world.biome.realistic.RealisticBiomeBase;
public class MapGenCavesRTG extends MapGenCaves
{
protected static final IBlockState BLK_LAVA = Blocks.LAVA.getDefaultState();
protected static final IBlockState BLK_AIR = Blocks.AIR.getDefaultState();
protected static final IBlockState BLK_SANDSTONE = Blocks.SANDSTONE.getDefaultState();
protected static final IBlockState BLK_RED_SANDSTONE = Blocks.RED_SANDSTONE.getDefaultState();
private RTGConfig rtgConfig = RTGAPI.config();
private boolean enableCaves;
@Override
protected void addRoom(long p_180703_1_, int p_180703_3_, int p_180703_4_, ChunkPrimer p_180703_5_, double p_180703_6_, double p_180703_8_, double p_180703_10_)
{
this.addTunnel(p_180703_1_, p_180703_3_, p_180703_4_, p_180703_5_, p_180703_6_, p_180703_8_, p_180703_10_, 1.0F + this.rand.nextFloat() * 6.0F, 0.0F, 0.0F, -1, -1, 0.5D);
}
@Override
protected void addTunnel(long p_180702_1_, int p_180702_3_, int p_180702_4_, ChunkPrimer p_180702_5_, double p_180702_6_, double p_180702_8_, double p_180702_10_, float p_180702_12_, float p_180702_13_, float p_180702_14_, int p_180702_15_, int p_180702_16_, double p_180702_17_)
{
double d0 = (double)(p_180702_3_ * 16 + 8);
double d1 = (double)(p_180702_4_ * 16 + 8);
float f = 0.0F;
float f1 = 0.0F;
Random random = new Random(p_180702_1_);
if (p_180702_16_ <= 0)
{
int i = this.range * 16 - 16;
p_180702_16_ = i - random.nextInt(i / 4);
}
boolean flag2 = false;
if (p_180702_15_ == -1)
{
p_180702_15_ = p_180702_16_ / 2;
flag2 = true;
}
int j = random.nextInt(p_180702_16_ / 2) + p_180702_16_ / 4;
for (boolean flag = random.nextInt(6) == 0; p_180702_15_ < p_180702_16_; ++p_180702_15_)
{
double d2 = 1.5D + (double)(MathHelper.sin((float)p_180702_15_ * (float)Math.PI / (float)p_180702_16_) * p_180702_12_);
double d3 = d2 * p_180702_17_;
float f2 = MathHelper.cos(p_180702_14_);
float f3 = MathHelper.sin(p_180702_14_);
p_180702_6_ += (double)(MathHelper.cos(p_180702_13_) * f2);
p_180702_8_ += (double)f3;
p_180702_10_ += (double)(MathHelper.sin(p_180702_13_) * f2);
if (flag)
{
p_180702_14_ = p_180702_14_ * 0.92F;
}
else
{
p_180702_14_ = p_180702_14_ * 0.7F;
}
p_180702_14_ = p_180702_14_ + f1 * 0.1F;
p_180702_13_ += f * 0.1F;
f1 = f1 * 0.9F;
f = f * 0.75F;
f1 = f1 + (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 2.0F;
f = f + (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 4.0F;
if (!flag2 && p_180702_15_ == j && p_180702_12_ > 1.0F && p_180702_16_ > 0)
{
this.addTunnel(random.nextLong(), p_180702_3_, p_180702_4_, p_180702_5_, p_180702_6_, p_180702_8_, p_180702_10_, random.nextFloat() * 0.5F + 0.5F, p_180702_13_ - ((float)Math.PI / 2F), p_180702_14_ / 3.0F, p_180702_15_, p_180702_16_, 1.0D);
this.addTunnel(random.nextLong(), p_180702_3_, p_180702_4_, p_180702_5_, p_180702_6_, p_180702_8_, p_180702_10_, random.nextFloat() * 0.5F + 0.5F, p_180702_13_ + ((float)Math.PI / 2F), p_180702_14_ / 3.0F, p_180702_15_, p_180702_16_, 1.0D);
return;
}
if (flag2 || random.nextInt(4) != 0)
{
double d4 = p_180702_6_ - d0;
double d5 = p_180702_10_ - d1;
double d6 = (double)(p_180702_16_ - p_180702_15_);
double d7 = (double)(p_180702_12_ + 2.0F + 16.0F);
if (d4 * d4 + d5 * d5 - d6 * d6 > d7 * d7)
{
return;
}
if (p_180702_6_ >= d0 - 16.0D - d2 * 2.0D && p_180702_10_ >= d1 - 16.0D - d2 * 2.0D && p_180702_6_ <= d0 + 16.0D + d2 * 2.0D && p_180702_10_ <= d1 + 16.0D + d2 * 2.0D)
{
int k2 = MathHelper.floor(p_180702_6_ - d2) - p_180702_3_ * 16 - 1;
int k = MathHelper.floor(p_180702_6_ + d2) - p_180702_3_ * 16 + 1;
int l2 = MathHelper.floor(p_180702_8_ - d3) - 1;
int l = MathHelper.floor(p_180702_8_ + d3) + 1;
int i3 = MathHelper.floor(p_180702_10_ - d2) - p_180702_4_ * 16 - 1;
int i1 = MathHelper.floor(p_180702_10_ + d2) - p_180702_4_ * 16 + 1;
if (k2 < 0)
{
k2 = 0;
}
if (k > 16)
{
k = 16;
}
if (l2 < 1)
{
l2 = 1;
}
if (l > 248)
{
l = 248;
}
if (i3 < 0)
{
i3 = 0;
}
if (i1 > 16)
{
i1 = 16;
}
boolean flag3 = false;
for (int j1 = k2; !flag3 && j1 < k; ++j1)
{
for (int k1 = i3; !flag3 && k1 < i1; ++k1)
{
for (int l1 = l + 1; !flag3 && l1 >= l2 - 1; --l1)
{
if (l1 >= 0 && l1 < 256)
{
if (isOceanBlock(p_180702_5_, j1, l1, k1, p_180702_3_, p_180702_4_))
{
flag3 = true;
}
if (l1 != l2 - 1 && j1 != k2 && j1 != k - 1 && k1 != i3 && k1 != i1 - 1)
{
l1 = l2;
}
}
}
}
}
if (!flag3)
{
BlockPos.MutableBlockPos blockpos$mutableblockpos = new BlockPos.MutableBlockPos();
for (int j3 = k2; j3 < k; ++j3)
{
double d10 = ((double)(j3 + p_180702_3_ * 16) + 0.5D - p_180702_6_) / d2;
for (int i2 = i3; i2 < i1; ++i2)
{
double d8 = ((double)(i2 + p_180702_4_ * 16) + 0.5D - p_180702_10_) / d2;
boolean flag1 = false;
if (d10 * d10 + d8 * d8 < 1.0D)
{
for (int j2 = l; j2 > l2; --j2)
{
double d9 = ((double)(j2 - 1) + 0.5D - p_180702_8_) / d3;
if (d9 > -0.7D && d10 * d10 + d9 * d9 + d8 * d8 < 1.0D)
{
IBlockState iblockstate1 = p_180702_5_.getBlockState(j3, j2, i2);
IBlockState iblockstate2 = (IBlockState)Objects.firstNonNull(p_180702_5_.getBlockState(j3, j2 + 1, i2), BLK_AIR);
if (isTopBlock(p_180702_5_, j3, j2, i2, p_180702_3_, p_180702_4_))
{
flag1 = true;
}
digBlock(p_180702_5_, j3, j2, i2, p_180702_3_, p_180702_4_, flag1, iblockstate1, iblockstate2);
}
}
}
}
}
if (flag2)
{
break;
}
}
}
}
}
}
@Override
protected boolean canReplaceBlock(IBlockState p_175793_1_, IBlockState p_175793_2_)
{
return p_175793_1_.getBlock() == Blocks.STONE ? true : (p_175793_1_.getBlock() == Blocks.DIRT ? true : (p_175793_1_.getBlock() == Blocks.GRASS ? true : (p_175793_1_.getBlock() == Blocks.HARDENED_CLAY ? true : (p_175793_1_.getBlock() == Blocks.STAINED_HARDENED_CLAY ? true : (p_175793_1_.getBlock() == Blocks.SANDSTONE ? true : (p_175793_1_.getBlock() == Blocks.RED_SANDSTONE ? true : (p_175793_1_.getBlock() == Blocks.MYCELIUM ? true : (p_175793_1_.getBlock() == Blocks.SNOW_LAYER ? true : (p_175793_1_.getBlock() == Blocks.SAND || p_175793_1_.getBlock() == Blocks.GRAVEL) && p_175793_2_.getMaterial() != Material.WATER))))))));
}
@Override
protected void recursiveGenerate(World worldIn, int chunkX, int chunkZ, int originalX, int originalZ, ChunkPrimer chunkPrimerIn) {
// Return early if caves are disabled.
if (!rtgConfig.ENABLE_CAVES.get()) return;
// Use the global settings by default.
int caveDensity = rtgConfig.CAVE_DENSITY.get();
int caveFrequency = rtgConfig.CAVE_FREQUENCY.get();
// If the user has set biome-specific settings, let's use those instead.
Biome biome = worldIn.getBiome(new BlockPos(this.rand.nextInt(16) + chunkX * 16, 0, this.rand.nextInt(16) + chunkZ * 16));
RealisticBiomeBase realisticBiome = RealisticBiomeBase.getBiome(Biome.getIdForBiome(biome));
if (realisticBiome != null) {
caveDensity = (realisticBiome.getConfig().CAVE_DENSITY.get() > -1) ? realisticBiome.getConfig().CAVE_DENSITY.get() : caveDensity;
caveFrequency = (realisticBiome.getConfig().CAVE_FREQUENCY.get() > -1) ? realisticBiome.getConfig().CAVE_FREQUENCY.get() : caveFrequency;
}
// Return early if caves are disabled.
if (caveDensity < 1 || caveFrequency < 1) return;
caveDensity = (caveDensity < 1) ? 1 : ((caveDensity > 39) ? 39 : caveDensity);
caveDensity += 1;
int i = this.rand.nextInt(this.rand.nextInt(this.rand.nextInt(caveDensity) + 1) + 1);
caveFrequency = (caveFrequency < 1) ? 1 : ((caveFrequency > 39) ? 39 : caveFrequency);
caveFrequency += 1;
if (this.rand.nextInt(caveFrequency) != 0) i = 0;
for (int j = 0; j < i; ++j)
{
double d0 = (double)(chunkX * 16 + this.rand.nextInt(16));
double d1 = (double)this.rand.nextInt(this.rand.nextInt(120) + 8);
double d2 = (double)(chunkZ * 16 + this.rand.nextInt(16));
int k = 1;
if (this.rand.nextInt(4) == 0)
{
this.addRoom(this.rand.nextLong(), originalX, originalZ, chunkPrimerIn, d0, d1, d2);
k += this.rand.nextInt(4);
}
for (int l = 0; l < k; ++l)
{
float f = this.rand.nextFloat() * ((float)Math.PI * 2F);
float f1 = (this.rand.nextFloat() - 0.5F) * 2.0F / 8.0F;
float f2 = this.rand.nextFloat() * 2.0F + this.rand.nextFloat();
if (this.rand.nextInt(10) == 0)
{
f2 *= this.rand.nextFloat() * this.rand.nextFloat() * 3.0F + 1.0F;
}
this.addTunnel(this.rand.nextLong(), originalX, originalZ, chunkPrimerIn, d0, d1, d2, f2, f, f1, 0, 0, 1.0D);
}
}
}
@Override
protected boolean isOceanBlock(ChunkPrimer data, int x, int y, int z, int chunkX, int chunkZ)
{
net.minecraft.block.Block block = data.getBlockState(x, y, z).getBlock();
return block== Blocks.FLOWING_WATER || block == Blocks.WATER;
}
//Exception biomes to make sure we generate like vanilla
private boolean isExceptionBiome(net.minecraft.world.biome.Biome biome)
{
if (biome == net.minecraft.init.Biomes.BEACH) return true;
if (biome == net.minecraft.init.Biomes.DESERT) return true;
return false;
}
//Determine if the block at the specified location is the top block for the biome, we take into account
//Vanilla bugs to make sure that we generate the map the same way vanilla does.
private boolean isTopBlock(ChunkPrimer data, int x, int y, int z, int chunkX, int chunkZ)
{
net.minecraft.world.biome.Biome biome = world.getBiome(new BlockPos(x + chunkX * 16, 0, z + chunkZ * 16));
IBlockState state = data.getBlockState(x, y, z);
return (isExceptionBiome(biome) ? state.getBlock() == Blocks.GRASS : state.getBlock() == biome.topBlock);
}
/**
* Digs out the current block, default implementation removes stone, filler, and top block
* Sets the block to lava if y is less then 10, and air other wise.
* If setting to air, it also checks to see if we've broken the surface and if so
* tries to make the floor the biome's top block
*
* @param data Block data array
* @param x local X position
* @param y local Y position
* @param z local Z position
* @param chunkX Chunk X position
* @param chunkZ Chunk Y position
* @param foundTop True if we've encountered the biome's top block. Ideally if we've broken the surface.
*/
@Override
protected void digBlock(ChunkPrimer data, int x, int y, int z, int chunkX, int chunkZ, boolean foundTop, IBlockState state, IBlockState up)
{
net.minecraft.world.biome.Biome biome = world.getBiome(new BlockPos(x + chunkX * 16, 0, z + chunkZ * 16));
IBlockState top = biome.topBlock;
IBlockState filler = biome.fillerBlock;
if (this.canReplaceBlock(state, up) || state.getBlock() == top.getBlock() || state.getBlock() == filler.getBlock())
{
if (y - 1 < 10)
{
data.setBlockState(x, y, z, BLK_LAVA);
}
else
{
data.setBlockState(x, y, z, BLK_AIR);
if (foundTop && data.getBlockState(x, y - 1, z).getBlock() == filler.getBlock())
{
data.setBlockState(x, y - 1, z, top.getBlock().getDefaultState());
}
}
}
}
}